Group members: Nur Amiraini Bt Ismail, Nur Fatiha Bt Ahmad Yazid, Nurul Amira Izzati Bt Matsalleh, Siti Nor Syafawani Binti Mohd Syah.
The document defines oxygen therapy as the administration of oxygen at concentrations higher than room air to prevent hypoxemia. It then discusses various types of oxygen delivery systems including nasal cannulas, masks, venturi masks, and infant hoods. It also covers different oxygen sources like oxygen concentrators and liquid oxygen tanks. The purpose is to increase oxygen saturation in tissues where levels are too low due to illness or injury.